CN205951992U - Railway tunnel boundary limit dynamic inspection system based on laser scanning distance measurement appearance - Google Patents
Railway tunnel boundary limit dynamic inspection system based on laser scanning distance measurement appearance Download PDFInfo
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- CN205951992U CN205951992U CN201620714173.4U CN201620714173U CN205951992U CN 205951992 U CN205951992 U CN 205951992U CN 201620714173 U CN201620714173 U CN 201620714173U CN 205951992 U CN205951992 U CN 205951992U
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- laser scanning
- railway tunnel
- distance measurement
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Abstract
The utility model provides a railway tunnel boundary limit dynamic inspection system based on laser scanning distance measurement appearance. The system includes many laser scanning distance measurement appearance and host computer, many laser scanning distance measurement appearance are installed respectively in the inside sectional different positions of same railway tunnel of railway tunnel gauging verification car automobile body, each laser scanning distance measurement appearance passes through ethernet and upper computer connection. Acquire the sectional different position sigual of same railway tunnel in real time, according to the central distance to railway tunnel section measuring point of laser scanning distance measurement appearance, the rail plane central point that converts out to the distance of this measuring point, storage rail plane central point arrives the distance and the angle of the different measuring points of same railway tunnel section, generate the sectional formation of image of each railway tunnel. The laser scanning distance measurement appearance detects the different positions of the same section of tunnel hole wall simultaneously, guarantees to cover full tunnel dong bi, the laser beam that the laser scanning distance measurement appearance is launched just can cover the boundary limit measuring range of tunnel profile 360.
Description
Technical field
This utility model is related to Tunnel testing technical field and in particular to a kind of railway tunnel based on laser scanning and ranging instrument
Road gauge dynamic detection system.
Background technology
The safety run on rail track in order to ensure rolling stock, prevents rolling stock from clashing into the building of adjacent lines
Thing and equipment, and the overall size line not allowing to surmount of the building to rolling stock with close to circuit, equipment defined, claim
For gauge.In railway《Skill is advised》In be even more made that clear stipulaties：All buildings, equipment, all must not invade under any circumstance
Enter the track clearance of railway.The accuracy of railroad clearance measurement is particularly significant, is directly connected to railway and expands cargo transport
Safety and revenue from transportation growth.Some districts segmented limit dimensional measurement in the past is inaccurate, leads to some to expand cargo transport
Must detour or refuse to transport, cause the waste of railway transport capacity and the loss of revenue from transportation.
Geographical form around rail track, Form of Architecture, or even the form of circuit itself all can send out under certain condition
The different degrees of change of life.In the past, railroad clearance is used mostly the manual method such as " lifting rope ", " feeler lever ", " tape measure " such as and enters
Row measurement, wastes time and energy, certainty of measurement is low.Develop rapidly with electrified railway lines, traditional measurement means cannot
Adapt to quick, accurate, safe track clearance detection to require；Hand-held laser scanning and ranging instrument can realize non-contact measurement,
But simply spot measurement, poor continuity, and datum mark cannot be fixed；Tunnel testing car measuring speed is fast, precision is higher, but
It is only applicable to bridge tunnel clearance survey, and takies cost of transportation, equipment manufacturing cost is expensive.For present status in China, it is badly in need of a kind of new
Railroad clearance measuring tool, can economical, convenient, accurately, flexibly different kinds of railways track clearance is measured, be
Railway production and transport escorts safely.
Content of the invention
The purpose of this utility model is to provide a kind of railway tunnel gauge dynamic detection based on laser scanning and ranging instrument
System.
The technical solution of the utility model is：
A kind of railway tunnel gauge dynamic detection system based on laser scanning and ranging instrument, including multiple stage laser scanning and ranging
Instrument and the host computer of each laser scanning and ranging instrument signal of collection；Multiple stage laser scanning and ranging instrument is separately mounted to railway tunnel limit
The diverse location of car vehicle body same railway tunnel section is detected on boundary；Each laser scanning and ranging instrument passes through Ethernet and host computer
Connect.
Described host computer includes：
For the real-time laser scanning and ranging signal gathering unit obtaining each laser scanning and ranging instrument signal；
The laser scanning and ranging instrument center being recorded according to laser scanning and ranging instrument to railway tunnel section measurement point away from
From conversing rail planar central point to the distance transform unit of this measurement point distance；
It is a storage cycle with the numbering name of railway tunnel section, with 360 °, store rail planar central point to same
The distance of railway tunnel section different measuring point and the data storage cell of angle；
The scanning and imaging unit of each the railway tunnel cross-sectional imaging of data genaration according to data storage cell storage；
The input of laser scanning and ranging signal gathering unit connects the outfan of laser scanning and ranging instrument, and laser scanning is surveyed
Outfan away from signal gathering unit connects the input of distance transform unit, and the outfan of distance transform unit connects data and deposits
The input of storage unit, the outfan of data storage cell connects the input of scanning and imaging unit.
Beneficial effect：
1st, laser scanning and ranging instrument detects Tunnel wall same section diverse location it is ensured that covering full Tunnel wall simultaneously；
2nd, the laser beam that laser scanning and ranging instrument is launched just can cover the clearance survey scope of 360 ° of tunnel contour；
3rd, adopt high-precision laser scanning rangefinder, coordinate host computer, noncontact can be carried out by various track clearances to railway
Formula measurement and data analysiss.
4th, a whole set of detecting system is easy to carry, simple to operate, and certainty of measurement is high, and the development expanding cargo transport to railway has
Significance.
Brief description
Fig. 1 is the railway tunnel gauge dynamic detection based on laser scanning and ranging instrument of this utility model specific embodiment
System architecture diagram；
Fig. 2 is the railway tunnel gauge dynamic detection process flow diagram flow chart of this utility model specific embodiment；
Fig. 3 is the laser scanning and ranging instrument measuring principle of this utility model specific embodiment.
Specific embodiment
Below in conjunction with the accompanying drawings specific embodiment of the present utility model is elaborated.
A kind of railway tunnel gauge dynamic detection system based on laser scanning and ranging instrument, as shown in figure 1, include multiple stage swash
Photoscanning diastimeter and the host computer of each laser scanning and ranging instrument signal of collection；Multiple stage laser scanning and ranging instrument is separately mounted to
The diverse location of railway tunnel clearance car vehicle body same railway tunnel section；Each laser scanning and ranging instrument passes through ether
Net is connected with host computer.
Host computer includes laser scanning and ranging signal gathering unit, distance transform unit, data storage cell, scanning imagery
Unit；
Laser scanning and ranging signal gathering unit：Obtain each laser scanning and ranging instrument signal for real-time；
Distance transform unit：The laser scanning and ranging instrument center being recorded according to laser scanning and ranging instrument is to railway tunnel section
The distance of certain measurement point, converses rail planar central point to the distance of this measurement point；
Data storage cell：Name is numbered with railway tunnel section, with 360 ° for a storage cycle, stores rail plane
Central point is to the distance of same railway tunnel section different measuring point and angle；
Scanning and imaging unit：The imaging of each the railway tunnel section of data genaration according to data storage cell storage.
The input of laser scanning and ranging signal gathering unit connects the outfan of laser scanning and ranging instrument, and laser scanning is surveyed
Outfan away from signal gathering unit connects the input of distance transform unit, and the outfan of distance transform unit connects data and deposits
The input of storage unit, the outfan of data storage cell connects the input of scanning and imaging unit.
Carry out the process of railway tunnel gauge dynamic detection using railway tunnel gauge dynamic detection system, as shown in Fig. 2
Including：
In railway tunnel clearance car traveling process, each laser scanning and ranging instrument obtains same railway tunnel in real time and breaks
The diverse location signal in face；
The laser scanning and ranging instrument center being recorded according to laser scanning and ranging instrument to railway tunnel section measurement point away from
From conversing rail planar central point to the distance of this measurement point；
What the system was carried out is two-dimensional space measurement, that is, the horizontal range of measurement point and rail planar central and vertical away from
From.As shown in figure 3, A is laser scanning and ranging instrument central point, O is rail planar central point, and B is target measurement point.Laser scanning
It is L that diastimeter records AB length, and angle is α, then B point is with respect to the horizontal range m=L × cos α of A point, vertical dimension n=L ×
sinα.Laser scanning, laser scanning and ranging instrument central point is 247.5 millimeters away from rail plane vertical height, with edema with the heart involved in rail
Flat distance is 747.5 millimeters, such that it is able to show that horizontal range between B point for the O point is m-747.5 millimeter, vertical dimension
For n+247.5 millimeter.
Name is numbered with railway tunnel section, is a storage cycle with 360 °, store rail planar central point to same
The distance of railway tunnel section different measuring point and angle；
Laser scanning and ranging instrument passes through Ethernet and Hostlink, and message transmission rate reaches as high as 10Mbit/s, and
Carry communications protocol, facilitate user program.
The imaging of each the railway tunnel section of data genaration according to storage.Host computer, can be real-time with VB6.0 as platform
Scanning imagery, and do data storage.
Claims (2)
1. a kind of railway tunnel gauge dynamic detection system based on laser scanning and ranging instrument swashs it is characterised in that including multiple stage
Photoscanning diastimeter and the host computer of each laser scanning and ranging instrument signal of collection；Multiple stage laser scanning and ranging instrument is separately mounted to
The diverse location of railway tunnel clearance car vehicle body same railway tunnel section；Each laser scanning and ranging instrument passes through ether
Net is connected with host computer.
2. the railway tunnel gauge dynamic detection system based on laser scanning and ranging instrument according to claim 1, its feature
It is, described host computer includes：
For the real-time laser scanning and ranging signal gathering unit obtaining each laser scanning and ranging instrument signal；
The laser scanning and ranging instrument center being recorded according to laser scanning and ranging instrument, to the distance of railway tunnel section measurement point, is changed
Calculate rail planar central point to the distance transform unit of this measurement point distance；
Store cycle, storage rail planar central point with the numbering name of railway tunnel section, with 360 ° for one to same railway
The distance of tunnel cross-section different measuring point and the data storage cell of angle；
The scanning and imaging unit of each the railway tunnel cross-sectional imaging of data genaration according to data storage cell storage；
The input of laser scanning and ranging signal gathering unit connects the outfan of laser scanning and ranging instrument, and laser scanning and ranging is believed
The outfan of number collecting unit connects the input of distance transform unit, and the outfan of distance transform unit connects data storage list
The input of unit, the outfan of data storage cell connects the input of scanning and imaging unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620714173.4U CN205951992U (en) | 2016-07-07 | 2016-07-07 | Railway tunnel boundary limit dynamic inspection system based on laser scanning distance measurement appearance |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620714173.4U CN205951992U (en) | 2016-07-07 | 2016-07-07 | Railway tunnel boundary limit dynamic inspection system based on laser scanning distance measurement appearance |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105946897A (en) * | 2016-07-07 | 2016-09-21 | 沈阳铁路局科学技术研究所 | Railway tunnel limit dynamic detecting system and method based on laser-scanning range finders |
| CN106835868A (en) * | 2017-03-06 | 2017-06-13 | 华东交通大学 | A kind of high accuracy railway clearance measuring method based on laser ranging |
| CN107421502A (en) * | 2017-07-26 | 2017-12-01 | 同济大学 | A kind of railway freight-car gauge automatic measurement method |
| CN110217262A (en) * | 2019-05-29 | 2019-09-10 | 成都希格玛光电科技有限公司 | The track clearance intrusion detection method and device compared based on image |
| CN112525092A (en) * | 2018-09-19 | 2021-03-19 | 成都理工大学 | Tunnel construction monitoring system |
| CN114234844A (en) * | 2022-02-15 | 2022-03-25 | 大秦铁路股份有限公司太原铁路房建段 | Three-dimensional structure measurement and deformation analysis method for railway canopy |
-
2016
- 2016-07-07 CN CN201620714173.4U patent/CN205951992U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105946897A (en) * | 2016-07-07 | 2016-09-21 | 沈阳铁路局科学技术研究所 | Railway tunnel limit dynamic detecting system and method based on laser-scanning range finders |
| CN106835868A (en) * | 2017-03-06 | 2017-06-13 | 华东交通大学 | A kind of high accuracy railway clearance measuring method based on laser ranging |
| CN107421502A (en) * | 2017-07-26 | 2017-12-01 | 同济大学 | A kind of railway freight-car gauge automatic measurement method |
| CN107421502B (en) * | 2017-07-26 | 2019-09-27 | 同济大学 | A kind of railway freight-car limit automatic measurement method |
| CN112525092A (en) * | 2018-09-19 | 2021-03-19 | 成都理工大学 | Tunnel construction monitoring system |
| CN112525092B (en) * | 2018-09-19 | 2022-06-03 | 成都理工大学 | Tunnel construction monitoring system based on double-shield TBM process |
| CN110217262A (en) * | 2019-05-29 | 2019-09-10 | 成都希格玛光电科技有限公司 | The track clearance intrusion detection method and device compared based on image |
| CN110217262B (en) * | 2019-05-29 | 2020-06-02 | 成都希格玛光电科技有限公司 | Track limit intrusion detection method and device based on image comparison |
| CN114234844A (en) * | 2022-02-15 | 2022-03-25 | 大秦铁路股份有限公司太原铁路房建段 | Three-dimensional structure measurement and deformation analysis method for railway canopy |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200708 Address after: 110013 4-3, Jing bin street, Shenhe District, Shenyang City, Liaoning province (1-7 level) Patentee after: Shenyang Railway Science and Technology Research Institute Co.,Ltd. Address before: 110013 Shenyang City, Liaoning province Bin Bin Street 4-3 Patentee before: SCIENCE AND TECHNOLOGY Research Institute OF SHENYANG RAILWAY ADMINISTRATION |
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| TR01 | Transfer of patent right |